Portable vulcanizer.



0. E. MARSHALL.

PORTABLE VULGANIZER. APPLICATION FILED APB..17, 1912.

1,058,316. Patented Apr. 8, 1,913.

WITNESSES} v [NV/W101 A TTORNEY.

CHARLES EDWIN MARSHALL, INDIANAPOLIfi, INDIANA.

' PORTABLE VULGANIZER.

, Specification iii Letters Patent.

Patented [ii -or, 5i; ill/d3 Application filed April 1'7, 1912. Serial No. fifilfililn To all whom it may concern Be it known that 1, Gimme EDWIN ldsssrman, a citizen of the United States,

residing at Indianapolis, in the county of and State of Indiana, have'invented a new and useful Portable Vulcanizer, of which the following is a specification reforence being hadto the accompanying drawings and to the letters and figures of refercnce marked thereon.

",lliis ievention relates to apparatus for vulcan zlng rubber or, rubber composition,

especially in the operation. ofmepairing' fractured or damaged articles, such as pll'uctureol or slitted pneumatic tiresol' air tubes thereof,' the invention havingreference; more perticularlyto a portable vulcanizcr otthe" alcove mentioned character.-

he object oitlle invention is to provide a safe and reliable- 'mzlcanizer' for johbing work and one especially adapted for usein in order to enable users of pneul ts quickly repair punctures either garage or out on the load in emer A. further object is to provide a portable simple vulcanizer that shall lie so constritact das to be adapted to generate and ours as he cheaply manufactured; not "liable 3 d a 'ernent when carried about in vehicles and which shall he durable, efi'ici'ent and economical in use. i

W 1th the above mentioned and other ob: jecls in View, theinvention consists in ages generatmgand burning VlllEaIlIZel com memg a base or lced on which to place amaged articles, and a'comloined gas generatorand learner adapted to cooperate with the base to hold the article in proper position to he acted on, the generator and burner constituting. a heater for cfiecting the vulcaniziog laceration. The ingention consists also in the novel parts and m the combinations and arrangements of parts as hereinafter particularly described and claimed.

Rcierrin to the drawings, Figure lsla top plan oi the vulcanizer and a port on of an air tube in position therein to be acted" upon; 2. a top plan ofthe hasevof the vulcanizer; 3, a vertical section ap-- proximately on the planes of the line 'A is Fig. 1; Fig. 4, a top plan of a part of the heater,v and Fig. 5, an inverted plan-of a part of the heater a I gimilar reference characters 1n the difi'e'rfl est figures of the drawings indicate corre substance such as Wood, asbestos board or vulcanized fiber ado ted to prevent the base from becoming .un esiraloly heated during the yiileanizing operation. The plate 8 prel eralolyis secured to the base 1 suitable elastic? and 3". The plate 8 is of suitable Width, so as to he somewhat narrower than the air tube to be mended when the latter is doubled or flattened togethei.

The'heater oi" vulcanizing member coniprises a flat plate 10 which adapted to rest upon the article to he mended and hold it in fiat conditionon the base, and it constitutes also the bottom of a font to hold liquid fuel from which to oncrete fuel-gas, the

plate ll) having a CyJlldlflO-ftl side wall thereon of suitable heiglit and two arms 12 and 13 are cast intefirall T with o oo'site ortionsoi the plate a'ndthe Wall that have and -5 respectively, the studs guiding the heater relative to the base and the arms are engaged' by the nuts 6 and Z for holding the heater in the desired position on the top slots 14 and 15 therein to receive the studs l v of the article to he acted upon. Two opposite portions of the Wall 11 have slots 16 and 17 therein extending from the top of the 'Wall downward a suitable distance toward the plane of the plate 10. The middle por tion of the. plate 10 has a clamping stud 1.8 thereon provided with screw-threads l9, and the plate 10 preferably -has also a suitable number of heat-conductors 20, 20", arrangejd heat-conductors. The heat-conductors constitute also supporting posts noon which a burnrplate 22 is placed Within the Wall 11,

ate 22 being so shaped as to form a pile -burner comprising a bottom 23am.

aside Wall 2a cast integrally with the plate,

the bottom having a hole '25 therein pro ,thereon in a circle concentrically to thewall 11, the plate preferably having also-another series of heat-conductors 21, 21", arran ed in a circle also concentrically and somew at closer-to the 'studtlian the first mentioned vided with screw-threads 26 and receiving the stud 18 which fills the hole and retains the plate 22 in proper position.

.The' pilot-burner constitutes a cup in which a relatively small quantity of liquidsuch that the bottom 23 of the pilot-burner is maintained somewhat above the plate 10 constituting the heater. the burner plate 22 has a suitable number of curved barriers 27 27, cast integrally and arranged at suitable distances apart in the circle somewhat less in diameter than the plate and concentric to the wall 11, the plate 22 having also another series of similar barriers 28, 28, thereon also arranged at suitable distances apart between the first mentioned barriers and the axis of the stud 18.

' in'the pilot-burner font is then ignited and" The plate 22 has a suitable number of relatively small apert-ures29 to form gas jets arranged in a circle between the barriers 27 and the barriers 28, the lower ends of the apertures having counter-bores 30.

The generator preferably is provided with a suitable absorbent or other substance 31 which is placed loosely upon the plate 10 in the spaces between the wall 11 and the barriers'" 27 and the barriers 28 for preventing Y over heating of the plate 10 and too rapid generation of gas with consequent waste of the fuel.

In practical use the article to be repaired, such as an air tube 32, is placed on the plate 8 of the base with the defective portion of the tube uppermost. The patch is properly prepared and placed on the upper side of the tubein the required position to close the aperture or slit, the patch being of well known composition. The heater is then placed upon the tube so that the heater. late 10 covers the patch, and the nuts 6 and I are screwed down on the arms 12 and 13 with only a sufficient pressure to hold the tube in flat condition. A suitable quantity of gasolene or other combustible liquid, such as kerosene oil or alcohol, is poured into the pilot-burner font, a suflicient quantity of the liquid being required to flow over the plate 22 and down through the holes '29 ii the compartment below the burner-plate ax partially fill the compartment. The liquid while beingconsurned the heat is generated which is required to heat the plate 22 and the heat conductors supporting the plate and generate gas from the liquid in the compartment of the burner. The gas rising through the holes 29 and past the edge of the plate 22 becomes ignited and is mixed with air drawn in through the slots 16 and The upper side of 17, the circulation. being distributed over the plate 22 by the barriers thereon which prevent, concentrated currents. The liquid fuel on the plate 10 becomes highly heated and boils but prevents the plate 10 from becoming dry hot or sufiiciently heated to injure the rubber. lVhen the gas has become consumed it Will be found that the tube has been perfectly vulcanized and the quality of rubber around the patch considerably improved.

Having thus described the invention, what is claimed as new is 1. A vulcanizer including a supporting base having two studs thereon, nuts on the studs, a heater having a generator and burner thereon and provided with slotted arms guided by the studs and adjustably held by the nuts opposite the base, the generator and burner comprising a cylindrical wall on the heater having two slots in opposite portions of the top thereof, a burner plate secured within the wall inclosure at a distance from the heater and having a cup in the middle portion thereof, the top of the burner plate having a plurality of barriers thereon arranged in two circles conccntri cally to the wall and between the slots in the wall, the burner-plate having also a plurnlity of apertures therein arranged in a 95 circle between the two circles of the barriers, and heat-conductors extending from the burner,plate to the heater.

2. In a vulcanizer, the combination with a supporting base, of a heater cooperating with the base and comprising a flat plate having a central screw-threaded stud and also a plurality of heat-conductors thereon, the plate having also a wall thereon surrounding the heat-conductors, and a burner plate seated upon the heat-conductors and having a cup-shaped middle portion extending toward the flat plate, the bottom of said cup-shaped portion being screwed onto said stud, said burner plate extending to opposite 11o portions of said wall and having a plurality of apertures therein.

3. In a vulcanizer, the combination with asupporting base, of a heater cooperating with the base and comprising a flat plate 115 having a plurality of heat-conductors thereon and a wall surrounding the heat-coir d riiors, a burner plate secured upon the ends a he heat-conductors and extending to cppesite portions of said wall, the burner 120 Flute having a plurality of barriers thereon arranged in two concentric circles and ha ng also a plurality of apertures therein between the. two circles of barriers, the middleportion of said burner plate being 125 cup-shaped.

- 4. In a vulcanizing device, the combination with a receptacle adapted to contain a combustible liquid, the bottom of the receptacle constituting a vulcanizing member, of 1:20

a combined gas generator and burner comprising-a plate having a cup-shaped middle portion and secured in the receptacle opposite to the bottom thereof for preventing access of gas flame to the liquid, the burner plate having barriers thereon and also apertures therein, the wall of the receptacle extending about the barriers and having openf ings in its upper portion.

5. In a vulcanizing device, the combination with a receptacle adapted to contain a combustible liquid, the bottom of the receptacle constituting a vulcanizing member, the wall of the receptacle-having slots in its upper portion, of a burner plate fixedly secured in the receptacle in a plane between the bottom of the receptacle and the slots,

' the plate having apertures therein and having also barriers'o-n the outer side thereof.

6. In a vulcanizing device, the combination of a vulcanizing plate having ascrewtending opposite .to the insulating plate, the

heater plate having a screw-threaded stud on the middle portion thereof and having also a wall thereon concentric to the stud, the wall having slots in opposite portions thereof, a covering substance on the heater plate extending about the stud within the wall inclosure, and a burner plate arranged in the wall inclosure and having a cup-shaped middle portion screwed onto said stud, the burner plate extending approximately to all portions of' the wall and having apertures therein and also barriers thereon.

8. In a vulcanizing device, the combination with a burner plate having a depressed middle portion and having also apertures -arranged about the middle portion for the passage of gas, of a receptacle associated with the burner plate and constructed for retaining a combustible liquid about and ad jacent to the depressed middle portion of the burner plate for generating gas from the liquid by heat radiated from the burner plate, and including awall extending about the burner plate and provided with openings in opposite portions thereof for admitting outer air to the gas passing from the receptacle through the apertures, said receptacle including a plate adapted to be applied to the material to be vulcanized.

In testimony whereof, I afiix my signature in presence of two witnesses.

CHAS. EDWIN MARSHALL.

Witnesses:

E. T. Sinvlus, M. J. MESSENI-IEIMER. 

